Table 2.

Correlations of eGFR, albumin mg/g creatinine ratio, and serum albumin with age, analytes of thyroid function, and CRP

		Age	TSH	T4	fT4	T3	fT3	rT3	rT3/T3	rT3/T4	TBG	CRP
eGFR (ml/min/1.73 m2)	rho p n	−0.403 <0.01 184	−0.07 n.s. 179	0.289 <0.01 179	0.196 <0.01 184	0.408 <0.01 178	0.390 <0.01 184	−0.03 n.s. 179	−0.28 <0.01 178	−0.26 <0.01 179	0.233 <0.01 184	−0.161 <0.05 175
ACR (mg/g creatinine)	rho p n	−0.226 <0.01 184	0.021 n.s. 173	0.057 n.s. 173	0.130 n.s. 180	0.062 n.s. 172	0.025 n.s. 180	−0.28 <0.01 173	−0.28 <0.01 172	−0.36 <0.01 173	0.008 n.s. 177	0.095 n.s. 168
Serum albumin (mg/l)	rho p n	−0.167 <0.05 183	−0.07 n.s. 172	0.183 <0.05 172	0.071 n.s. 179	0.161 <0.05 171	0.255 <0.01 179	0.167 <0.05 172	0.022 n.s. 171	0.032 n.s. 172	0.143 n.s. 177	−0.244 <0.01 173

CRP C-reactive protein, eGFR estimated glomerular filtration rate, ACR albumin/creatinine ratio, fT3 free trioodothyronine, fT4 free thyroxine, n number of patients, n.s. not significant, p p value, rho correlation coefficient (Spearman’s rho), rT3 reverse triiodothyronine, T3 triiodothyronine, T4 thyroxine, TBG thyroxine-binding globulin, TSH thyroid-stimulating hormone